Senior System Administrator

About Onit

We're redefining the future of legal operations through the power of AI. Our cutting-edge platform streamlines enterprise legal management, matter management, spend management and contract lifecycle processes, transforming manual workflows into intelligent, automated solutions.

We’re a team of innovators using AI at the core to help legal departments become faster, smarter, and more strategic. As we continue to grow and expand the capabilities of our new AI-centric platform, we’re looking for bold thinkers and builders who are excited to shape the next chapter of legal tech.

If you're energized by meaningful work, love solving complex problems, and want to help modernize how legal teams operate, we’d love to meet you.

Role Summary

The Sr. System Administrator role will be responsible for managing and maintaining Core IT Infrastructure of Onit, with technical expertise in M365 and Intune Administration. Knowledge of CrowdStrike, Mimecast, Meraki, ISO 27001 and GDPR would be good. Ability to troubleshoot and resolve issues related to various applications and Microsoft 365 services would be BAU. Quickly learning and developing new skills would be expected.

Responsibilities

• Resolving tickets and implementing changes related to Intune and all M365 apps. Will to learn, troubleshoot and resolve JAMF and MacBook-related issues.
• Improving Intune, Increasing Entra ID Security Score, Conditional Access and Security Policies, Email Security and Network security.
• Manage email authentication protocols (DKIM, DMARC, SPF) for enhanced security.
• Hands-on expertise in monitoring email traffic, troubleshooting email delivery issues, managing quarantines, and responding to security incidents using the Mimecast Admin Console.
• Drive continuous learning and improvement in Intune, Entra Security Score, and complete M365 Suite.
  
  

Required Skills And Qualifications

• 8+ years of experience in Intune, M365, Mimecast and ISO 27001.
• Hands-on experience in Intune & Entra ID , Identity & Access Management (IAM), MS Teams, OneDrive, SharePoint and ISO 27001 process.
• Lead M365 tenant-to-tenant or hybrid migrations, user onboarding/offboarding automation, and policy configuration.
• Implement, monitor, and optimize Intune MAM/MDM and Conditional Access policies.
• Own compliance initiatives include ISO 27001 audits, risk management, and GDPR-aligned data practices.
• Manage & Troubleshoot Mimecast email security: DKIM, SPF, DMARC configuration, threat protection, and incident response.
  
  

Certifications

• MS-101: Microsoft 365 Mobility and Security
• MD-102: Endpoint Administrator
• Any M365 migration-related experience would be required
  
  

Benefits & Perks That Support You

Onit offers a comprehensive total rewards package designed to support the whole employee at work and beyond:

Health Coverage: Employee and immediate family members.

Time Away: Flexible paid time off and 10 company paid holidays annually.

Family Support: Exceptional paid leave for birth parents, non-birth parents, and caregivers. Onit also offers surrogacy and adoption reimbursement.

Income Protection: 100% employer-paid life and disability insurance.

Additional Coverage Options: Voluntary benefits including hospital indemnity, critical illness, accident, and even pet insurance.

Tax-Advantaged Accounts: Flexi, NPS.

Community Engagement: One paid volunteer day each year to give back to the community.

Our Commitment to Applicants

We know that not everyone will check every box in a job description. At Onit, we value diversity, inclusion, and authenticity. If you’re excited about this role but your experience doesn’t align perfectly with every qualification, we encourage you to apply. You may be exactly who we’re looking for.

Onit Values

Customer First - Customer success is our success. We deliver value, listen, and act on customer needs.

Purposeful Innovation - Innovation fuels our growth. We harness creativity to solve problems and lead with the intentions and expertise.

Win as One - Teamwork is how we win. We are accountable, act with integrity, and communicate openly.

Intentional Growth - Our people are the difference. We create an environment with compelling work, impactful contributions, and career growth.